<template>
    <div>
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 用户列表卡片内容区 -->
        <el-card class="box-card">
            <!-- 搜索 添加 -->
            <el-row :gutter="20">
                <el-col :span="10">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button type="success" slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true" style="float: right;margin-right: 40px;">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表区域 -->
            <el-table :data="userlist" border stripe header-row-class-name="table_header" :header-cell-style="table_header">
                <!-- stripe: 斑马条纹
                border：边框-->
                <el-table-column type="index" label="#"></el-table-column>
                <el-table-column prop="username" label="姓名"></el-table-column>
                <el-table-column prop="email" label="邮箱"></el-table-column>
                <el-table-column prop="mobile" label="电话"></el-table-column>
                <el-table-column prop="role_name" label="角色"></el-table-column>
                <el-table-column label="状态" width="60px;">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.state" @change="userStateChanged(scope.row)"></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" align="center" min-width="150px">
                    <template slot-scope="scope">
                        <el-button
                        type="primary"
                        icon="el-icon-edit"
                        size="mini"
                        circle
                        @click="showEditDialog(scope.row.id)"
                        ></el-button>
                        <el-button
                        type="danger"
                        icon="el-icon-delete"
                        size="mini"
                        circle
                        @click="removeUserById(scope.row.id)"
                        ></el-button>
                        <el-tooltip
                        class="item"
                        effect="dark"
                        content="角色分配"
                        :enterable="false"
                        placement="top"
                        >
                        <el-button
                            type="warning"
                            icon="el-icon-setting"
                            size="mini"
                            circle
                            @click="showSetRole(scope.row)"
                        ></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pageNum"
                :page-sizes="[2, 5, 10, 15]"
                :page-size="queryInfo.pageSize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="totle"
                background
                hide-on-single-page
            ></el-pagination>
        </el-card>
        <!-- 添加用户对话框 -->
        <el-dialog
            title="添加用户"
            :visible.sync="addDialogVisible"
            width="50%"
            @close="addDialogClosed"
            :close-on-click-modal="false"
            >
            <el-form
            :model="addUserForm"
            ref="addUserFormRef"
            :rules="addUserFormRules"
            label-width="100px">
                <el-form-item label="用户名" prop="username">
                <el-input v-model="addUserForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                <el-input v-model="addUserForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                <el-input v-model="addUserForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                <el-input v-model="addUserForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>

         <!-- 修改用户的对话框 -->
        <el-dialog
            title="修改用户信息"
            :visible.sync="editDialogVisible"
            width="50%"
            @close="editDialogClosed"
            :close-on-click-modal="false"
            >
            <!-- 内容主体 -->
            <el-form
                :model="editUserForm"
                ref="editUserFormRef"
                :rules="editUserFormRules"
                label-width="70px">
                <el-form-item label="用户名">
                <el-input v-model="editUserForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                <el-input v-model="editUserForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                <el-input v-model="editUserForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUser">确 定</el-button>
            </span>
        </el-dialog>
         <!-- 分配角色对话框 -->
        <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
            <div>
                <p>当前用户：{{userInfo.username}}</p>
                <p>当前角色：{{userInfo.role_name}}</p>
                <p>
                分配角色：
                <el-select
                    v-model="selectRoleId"
                    filterable
                    allow-create
                    default-first-option
                    placeholder="请选择角色标签"
                >
                    <el-option
                    v-for="item in rolesLsit"
                    :key="item.id"
                    :label="item.roleName"
                    :value="item.id"
                    ></el-option>
                </el-select>
                </p>
            </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>
<script>
import Qs from 'qs'

export default {
    data(){
        // 自定义邮箱规则
        var checkEmail = (rule, value, callback) => {
            const regEmail = /^\w+@\w+(\.\w+)+$/
            if (regEmail.test(value)) {
                // 合法邮箱
                return callback()
            }
            callback(new Error('请输入合法邮箱'))
        }
        // 自定义手机号规则
        var checkMobile = (rule, value, callback) => {
            const regMobile = /^1[34578]\d{9}$/
            if (regMobile.test(value)) {
                return callback()
            }
            // 返回一个错误提示
            callback(new Error('请输入合法的手机号码'))
        }
        return {
            queryInfo: {
                query: '',
                // 当前页数
                pageNum: 1,
                // 每页显示多少数据
                pageSize: 10
            },
            userlist: [],
            totle: 0,
            addDialogVisible: false,
            // 用户添加
            addUserForm: {
                username: '',
                password: '',
                email: '',
                mobile: ''
            },
            // 用户添加表单验证规则
            addUserFormRules: {
                username: [
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                    {
                        min: 2,
                        max: 10,
                        message: '用户名的长度在2～10个字',
                        trigger: 'blur'
                    }
                ],
                password: [
                    { required: true, message: '请输入用户密码', trigger: 'blur' },
                    {
                        min: 6,
                        max: 18,
                        message: '用户密码的长度在6～18个字',
                        trigger: 'blur'
                    }
                ],
                email: [
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    { validator: checkEmail, trigger: 'blur' }
                ],
                mobile: [
                    { required: true, message: '请输入手机号码', trigger: 'blur' },
                    { validator: checkMobile, trigger: 'blur' }
                ]
            },
            // 修改用户
            editDialogVisible: false,
            editUserForm: {},
            // 编辑用户表单验证
            editUserFormRules: {
                email: [
                { required: true, message: '请输入邮箱', trigger: 'blur' },
                { validator: checkEmail, trigger: 'blur' }
                ],
                mobile: [
                { required: true, message: '请输入手机号码', trigger: 'blur' },
                { validator: checkMobile, trigger: 'blur' }
                ]
            },
             // 分配角色对话框
            setRoleDialogVisible: false,
            // 当前需要被分配角色的用户
            userInfo: {},
            // 所有角色数据列表
            rolesLsit: [],
            // 已选中的角色Id值
            selectRoleId: ''
        }
    },
    created () {
        this.getUserList()
    },
    methods: {
        table_header(row, column, rowIndex, columnIndex){
            return 'background-color: #67C23A; color:white'
        },
         // 监听 pagesize改变的事件
        handleSizeChange (newSize) {
            // console.log(newSize)
            this.queryInfo.pageSize = newSize
            this.getUserList()
        },
        // 监听 页码值 改变事件
        handleCurrentChange (newSize) {
            // console.log(newSize)
            this.queryInfo.pageNum = newSize
            this.getUserList()
        },
        // 监听添加用户对话框关闭事件
        addDialogClosed () {
            this.$refs.addUserFormRef.resetFields()
        },
        // 监听用户状态改变事件
        async userStateChanged(userInfo){
            const {data: res, status: status} = await this.axios.put(`manager/${userInfo.id}/state/${userInfo.state}`)
            if (status !== 200) {
                userInfo.state = !userInfo.state
                return this.$message.error('更新用户状态失败')
            }
            this.$message.success('更新用户状态成功！')
        },
        // 获取用户列表
        async getUserList () {
            const { data: res, status: status } = await this.axios.get('managers', {
                params: this.queryInfo
            })
            if (status !== 200) {
                return this.$message.error('获取用户列表失败！')
            }
            this.userlist = res.list
            this.totle = res.total
        },
        // 添加用户
        addUser () {
            // 提交请求前，表单预验证
            this.$refs.addUserFormRef.validate(async valid => {
                // console.log(valid)
                // 表单预校验失败
                if (!valid) return
                const { data: res, status: status } = await this.$http.post('manager', this.addUserForm)
                if (status !== 200) {
                    this.$message.error('添加用户失败！')
                }
                this.$message.success('添加用户成功！')
                // 隐藏添加用户对话框
                this.addDialogVisible = false
                this.getUserList()
            })
        },
        // 编辑用户信息
        async showEditDialog (id) {
            const { data: res, status: status } = await this.axios.get('manager/' + id)
            if (status !== 200) {
                return this.$message.error('查询用户信息失败！')
            }
            this.editUserForm = res.data
            this.editDialogVisible = true
        },
        // 监听修改用户对话框的关闭事件
        editDialogClosed () {
            this.$refs.editUserFormRef.resetFields()
        },
        // 修改用户信息
        editUser () {
            // 提交请求前，表单预验证
            this.$refs.editUserFormRef.validate(async valid => {
                // console.log(valid)
                // 表单预校验失败
                if (!valid) return
                const { data: res, status: status } = await this.axios.put('manager', this.editUserForm)
                if (status !== 200) {
                    this.$message.error('更新用户信息失败！')
                }
                // 隐藏添加用户对话框
                this.editDialogVisible = false
                this.$message.success('更新用户信息成功！')
                this.getUserList()
            })
        },
         // 删除用户
        async removeUserById (id) {
            const confirmResult = await this.$confirm(
                '此操作将永久删除该用户, 是否继续?',
                '提示',
                {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
                }
            ).catch(err => err)
            // 点击确定 返回值为：confirm
            // 点击取消 返回值为： cancel
            if (confirmResult !== 'confirm') {
                return this.$message.info('已取消删除')
            }
            const { data: res, status: status } = await this.axios.delete('manager/' + id)
            if (status !== 200) return this.$message.error('删除用户失败！')
            this.$message.success('删除用户成功！')
            this.getUserList()
        },
         // 展示分配角色的对话框
        async showSetRole (role) {
            this.userInfo = role
            // 展示对话框之前，获取所有角色列表
            const { data: res, status: status } = await this.axios.get('roles')
            if (status !== 200) {
                return this.$message.error('获取角色列表失败！')
            }
            this.rolesLsit = res.data
            this.setRoleDialogVisible = true
        },
        // 分配角色
        async saveRoleInfo () {
            if (!this.selectRoleId) {
                return this.$message.error('请选择要分配的角色')
            }
            const { data: res, status: status } = await this.axios.put(`manager/${this.userInfo.id}/role`, Qs.stringify({role_id: this.selectRoleId}))
            if (status !== 200) {
                return this.$message.error('更新用户角色失败！')
            }
            this.$message.success('更新角色成功！')
            this.getUserList()
            this.setRoleDialogVisible = false
        },
        // 分配角色对话框关闭事件
        setRoleDialogClosed () {
            this.selectRoleId = ''
            this.userInfo = {}
        }
    }
}
</script>
<style lang="less" scoped>

</style>